Dosage piston retention clip



FIG. 1 is a perspective view of the retention clip in a first position;

FIG. 2 is a front elevation view of the retention clip in a first position, with the rear elevation view being, identical to the front elevation view;

FIG. 3 is a left elevation view of the retention clip in a first position, with the right elevation view being identical to the left elevation view;

FIG. 4 is a top plan view of the retention clip;

FIG. 5 is a bottom plum view of the retention clip; and,

FIG. 6 is a perspective view of the retention clip in a second position.

The broken line showing a piston in FIGS. 1, 2, 3, and 6 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a dosage piston retention clip, as shown and described. 